Finding the Fourth Proportional to 3,174,729.48, 4,381,159.68 and 1,724,453.28
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Solution
The fourth proportional to 3,174,729.48, 4,381,159.68 and 1,724,453.28 is: 2,379,763.45
Step by Step Solution
- Step 1: Write the proportion equation
3,174,729.48 : 4,381,159.68 = 1,724,453.28 : x - Step 2: Convert to fraction form
3,174,729.48/4,381,159.68 = 1,724,453.28/x - Step 3: Cross multiply
3,174,729.48x = 4,381,159.68 × 1,724,453.28 - Step 4: Simplify right side
3,174,729.48x = 7,555,105,180,379.75 - Step 5: Solve for x
x = 7,555,105,180,379.75/3,174,729.48 - Step 6: Final answer
x = 2,379,763.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.